DALLAS, Jan. 21, 2013 /PRNewswire/ -- Southwest Airlines (NYSE: LUV) announced today the addition of Carlson Rezidor Hotel Group as a new Partner of the carrier's frequent flyer program, Rapid Rewards. Members of Rapid Rewards will receive 600 points for every qualifying stay at more than 1,000 Carlson Rezidor hotels worldwide, including Radisson Blu, Radisson ®, Park Inn by Radisson, Park Plaza®, and Country Inns & Suites By Carlson(SM). To celebrate the new partnership, now through March 31, 2013, Rapid Rewards Members can earn double points at participating Radisson Blu, Radisson, and Country Inns & Suites By Carlson hotels. "We're excited to add Carlson Rezidor to our growing roster of Partners in the Rapid Rewards program," said Jonathan Clarkson, Southwest's Director of Rapid Rewards. "This provides our Members yet another way to earn Rapid Rewards Points while enjoying world class hospitality from one of the world's largest hotel groups." "This partnership brings an exciting new opportunity to our loyal Club Carlson members and allows our hotel brands to reach a traveling audience of over 116 million passengers on Southwest Airlines each year," said Suzanne Riesterer, chief commercial officer, Carlson Rezidor Hotel Group. "As one of the world's largest and most dynamic hotel companies, we are proud to partner with one of the nation's largest carriers." Members of Club Carlson(SM), a global hotel rewards program, who are also Rapid Rewards Members, can convert their Gold Points ® to Rapid Rewards Points. To learn more, Members can visit www.southwest.com/carlson. Guests who are not Club Carlson members can join for free during any stay at a Carlson Rezidor hotel or by visiting www.clubcarlson.com. Southwest's Rapid Rewards Program, with unlimited reward seats, no blackout dates, and points that don't expire*, makes it fast and easy for Members to earn reward flights! That's why Rapid Rewards was recently ranked as having the best reward seat availability of any U.S. carrier** for the third year in a row.